My concern with 4 strokes is weight and size. They look huge compared to 2 strokes with equal horse power.
Does this mean that for people such as myself who have an older boat (ring 18) which has a maximum hp rating of 200HP (which is what we are running with at the mo), we would be unable to fit a 4 stroke equivalent due to size / weight.
If this is the case and we wanted to fit a 4 stroke, then what would be the max HP that could be fitted to a Ring / Phantom / Marshan 18 / 19 and of course 21??